Caitlin Ostroff News & Prediction Market Coverage
Track the latest Caitlin Ostroff news across prediction markets. Prediction News is following 2 active Caitlin Ostroff stories across regulation, legal action, market moves, and platform developments, each clustered from original reporting and summarized for operators, traders, and regulators.
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Frequently Asked Questions
What did Caitlin Ostroff report about Polymarket?
Ostroff co-authored a WSJ investigation showing Polymarket paid mostly college-age creators $1.9 million for more than 1,100 videos of fake bets on near-identical copies of its site, none of which reflected real gains.
Caitlin Ostroff Polymarket fake bets
Her reporting exposed a staged influencer campaign designed to create the illusion of grassroots success and drive user growth, contradicting Polymarket's transparency claims.
WSJ Caitlin Ostroff Polymarket podcast
She appeared on the July 6, 2026 episode of The Journal podcast hosted by Ryan Knutson, discussing the investigation into Polymarket's fabricated viral marketing.
Who investigated Polymarket's marketing with Katherine Long?
Caitlin Ostroff, a WSJ data reporter, worked with Katherine Long on the story.
Caitlin Ostroff WSJ author page
Her WSJ author page covers her data-driven reporting on finance and markets.